One who is unknown or unacquainted; as, the gentleman is a stranger to me; hence, one not admitted to communication, fellowship, or acquaintance. "Melons on beds of ice are taught to bear, And strangers to the sun yet ripen here." (Granville) "My child is yet a stranger in the world." (Shak) "I was no stranger to the original." (Dryden)

3. One not privy or party an act, contract, or title; a mere intruder or intermeddler; one who interferes without right; as, actual possession of land gives a good title against a stranger having no title; as to strangers, a mortgage is considered merely as a pledge; a mere stranger to the levy.